When a signal is quantized such that the step size S is small in comparison with the peak to peak range of the signal, the mean square quantization error is equal to

• A. S
• B. ²
• C. <img src="/_files/images/electronics-and-communication-engineering/communication-systems/515-437-1.png">
• D. <img src="/_files/images/electronics-and-communication-engineering/communication-systems/515-437-2.png">
• E. <img src="/_files/images/electronics-and-communication-engineering/communication-systems/515-437-3.png">